Simple and Effective, The Tri-Clover® Ball Valve
5308/5309 Series Ball Valves
5308 Ball Valve

Application

Tri-Clover ball valves are ideal for applications requiring a full flow body design to minimize line turbulence and pressure drop. An encapsulated seat option is available for critical process applications requiring maximum reduction of potential for product entrapment.

Standard Design

The Tri-Clover ball valve consists of a stainless steel body that houses a rotating ball. The rotating ball is sealed in the body with a PTFE seat that either partially or fully encapsulates the ball. The valve is activated by a stainless steel handle that opens and closes the valve through a quarter turn. The valve can also be operated by an optional ¼ turn pneumatic or electric actuator. External thrust springs maintain constant pressure on the stem packing. The stem and packing design eliminate the possibility of the stem becoming dislodged or blown out.

Actuator Function

  • - Pneumatic actuator air to air
  • - Pneumatic actuator air to spring
  • - Electric actuator

Materials

Elastomers PTFE (standard)Reinforced PTFE (optional)
Valve Body 1.4401 (316L) cast stainless steel
Handle 1.4301 (304) stainless steel
Ball & Stem 1.4401 (316L) stainless steel
Actuators Epoxy coated (standard)Stainless Steel (optional)
Actuator bracket, coupling and hardware 1.4301 (304) stainless steel

Sizes

Model 5308 (Tri-Clamp connections):
½” to 4” (12.7mm to 101.6mm) Tube OD (2 way)
 
Model 5309 (Butt-Weld connections):
½” to 2” (12.7mm to 50.8mm) Tube OD (2 way)

Torque vs. Pressure

Standard Seats
1/2" (12.7mm) - 2" (50.8mm) Tube OD   3" (76.2mm) - 4" (101.68mm) Tube OD
Torque   Torque
 
 
 
 
 
 
 
 
 
 
 
 
         
  Line Pressure     Line Pressure
         
         
         
Encapsulated Seats
1/2" (12.7mm) - 2" (50.8mm) Tube OD   3" (76.2mm) - 4" (101.68mm) Tube OD
Torque   Torque
  Line Pressure     Line Pressure
Use the charts above to determine the amount of torque required to cycle the ball valve.

Standard and Encapsulated Seats: Ratings - Pressure vs. Temperature

Pressure    
n Reinforced (glass-filled) PTFE
   
l PTFE
   
   
   
   
   
   
   
   
   
   
   
  Temperature    
       

Manual Valve Dimensions

Tri-Clamp® Ends Tri-Clamp® Ends Butt-Weld Ends
Model 5308 Model 5308 Model 5309
Sizes ½” - 2” Sizes 3” and 4”  
     
Model Size A B C D E J Weight (valve + handle)
inch mm inch mm inch mm inch mm inch mm inch mm inch mm lb kg
5308 Tri-Clamp® (both ends) 1/2 12.7 1 3/4 44.5 3 1/2 88.9 3/8 9.5 2 5/16 58.7 1 9/64 29.0 5 1/4 134 2 0.9
3/4 19.0 1 3/4 44.5 3 1/2 88.9 5/8 15.9 2 7/16 61.9 1 9/64 29.0 5 1/4 134 2 0.9
11/2 25.4 1 3/4 44.5 3 1/2 88.9 27/32 21.4 2 5/16 58.7 1 19/64 33.0 5 1/4 134 3 1.4
1 1/2 38.1 2 1/4 57.2 4 1/2 114.3 1 23/64 34.5 2 3/4 95.3 1 37/64 40.0 6 11/16 170 6 2.7
2 50.8 2 1/2 63.5 5 127.0 1 56/64 47.2 4 1/8 104.8 2 3/16 55.5 8 9/64 207 10 4.5
3 76.2 3 7/8 98.4 7 3/4 196.9 2 55/64 72.6 7 177.8 4 9/16 115.5 11 3/4 298.4 30 13.6
4 101.6 4 3/4 120.7 9 1/2 241.3 3 13/16 81.0 7 1/2 190.5 5 1/4 113.5 13 1/4 336.5 47 21.3
5309 Butt-Weld (both ends) 1/2 12.7 2 11/16 68.3 5 3/8 136.5 3/8 9.5 2 5/16 58.7 1 9/64 29.0 5 1/4 134.0 2 0.9
3/4 19.0 2 13/16 71.4 5 5/8 142.9 5/8 15.9 2 7/16 61.9 1 9/64 29.0 5 1/4 134.0 2 0.9
1 25.4 3 7/32 81.8 6 7/16 163.5 27/32 21.4 2 5/16 58.7 1 19/64 33.0 5 1/4 134.0 3 1.4
1 1/2 38.1 3 5/8 92.1 7 1/4 184.2 1 23/64 34.5 3 3/4 95.3 1 37/64 40.0 6 11/16 170.0 6 2.7
2 50.8 3 13/16 81.0 7 5/8 193.7 1 55/64 47.2 4 1/8 104.8 23/16 55.5 8 9/64 207.0 10 4.5